Search found 440 matches

by JennyB
Sep 01 2019 6:20am
Forum: E-Scooter and Motorcycle General Discussion
Topic: The Charly Miller Challenge
Replies: 0
Views: 535

The Charly Miller Challenge

The Paris-Brest-Paris 1200k randonee is perhaps the oldest cycling event still running. It began in the 19th century as a no-holds-barred race, with star riders being paced by relays of tandems, and sometimes by motorcycles. In 1901, Charly Miller , riding solo and unsupported, finished fifth in 56 ...
by JennyB
Jun 17 2019 2:52pm
Forum: Large EV General Discussion
Topic: Three wheel steering
Replies: 5
Views: 1928

Re: Three wheel steering

What do you mean by smallest, lightest and hand controls? Are you talking about hand pedals or a twist and go scooter style of drive? The latter. As to size, no more than 8' long by four wide, and capable of carrying anything a longtail cargobike can. I'm thinking that for really bulky loads and aw...
by JennyB
Jun 16 2019 4:42am
Forum: Large EV General Discussion
Topic: Three wheel steering
Replies: 5
Views: 1928

Three wheel steering

Thinking about the simplest, lightest vehicle that would be usable on any road, with a low frontal area and a bit of streamling for maximum range. Hand controls only. I was at first thinking of something like a racing sidecar combination, but that has a problem of asymmetry: even with a helpful pass...
by JennyB
May 16 2016 2:06am
Forum: E-Bike Non-hub Motor Drives
Topic: BBS01 Intermittent error 7 (overvoltage but battery @41v)
Replies: 2
Views: 519

Re: BBS01 Intermittent error 7 (halls sensor)

This site says it's over voltage, error 7, http://www.pedelecs.co.uk/forum/threads/bafang-bbs01-error-7.20255/ Yes, I misread the manual. There doesn't seem to be an easy cure, though. :? I should have said, the motor doesn't run at all when the error shows. It is intermittent and unpredictable. Or...
by JennyB
Jan 10 2016 2:35am
Forum: E-Bike General Discussion
Topic: 40 kph, 385 kilometers per day on a solar charged ebike
Replies: 9
Views: 1889

Re: 40 kph, 385 kilometers per day on a solar charged ebike

Impressive, but to put it in perspective - Kurt Searvogel: https://scontent-yyz1-1.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/12548962_10153799101472591_4486336360514441046_n.jpg?oh=51b4990db9a1a3aca8b47600298ac865&oe=57013E86 Over 200 miles a day average for a whole year. No solar. No batteries. :shock:
by JennyB
Dec 04 2014 11:24am
Forum: E-Bike Non-hub Motor Drives
Topic: Removing BSS01
Replies: 1
Views: 601

Removing BSS01

I have one of these that I now want to move to a different bike. It was a very tight fit originally, and is now pretty well stuck. Any ideas for getting it out without damaging either it or the aluminium frame?
by JennyB
Oct 26 2014 2:27am
Forum: Battery Technology
Topic: Materials for mid-frame enclosure?
Replies: 3
Views: 663

Materials for mid-frame enclosure?

I have a shrink wrapped 18650 battery (36v 20ah) that I've be carrying in a saddlebag. Lately I'very experimented with a modified bottle cage mounting, which works well, but it could do with more protection for winter riding. Here's the idea: a couple of rigid side plates (ply?) bigger all round tha...
by JennyB
Oct 02 2014 3:24am
Forum: E-Bike General Discussion
Topic: The Dynamics of "Aero"
Replies: 16
Views: 2096

Re: The Dynamics of "Aero"

You can see why no one runs them on the road. They need far too much room! Hehe... Hi JennyB. Thought is to fly a not-too-tall spanker sail off "aft" (rear/back) to have adjustable by... "pilot"/rider/driver for when wind direction and speed is right. An "assist" to th...
by JennyB
Oct 01 2014 6:30am
Forum: E-Bike General Discussion
Topic: The Dynamics of "Aero"
Replies: 16
Views: 2096

Re: The Dynamics of "Aero"

I know Murvagh well; it's about twenty miles away. In, fact my brother might possibly be in there somewhere as he hires Blokarts (the mini landyachts). You can see why no one runs them on the road. They need far too much room!
by JennyB
Aug 21 2014 2:20am
Forum: E-pic Topics
Topic: 4500+ Miles US Ebike Tour - August 2014
Replies: 490
Views: 86593

Re: 4500+ Miles US Ebike Tour - August 2014

Voice of experience: there's no shame in deciding to give up - but do first take as long as you need to get fed and rested, and only then consider whether you can make it to the next stop. Otherwise you'll end up with a case of "coulda-shoulda."
by JennyB
Aug 01 2014 1:29pm
Forum: E-Bike General Discussion
Topic: 1200 km, 14 km of climbing in 90 hours - AM I MAD?
Replies: 33
Views: 3951

Re: 1200 km, 14 km of climbing in 90 hours - AM I MAD?

Memories, memories!

Some scenes from a coming DVD of the ride, mainly from the first day. 8)

http://vimeo.com/99334781
by JennyB
Jul 28 2014 3:31am
Forum: E-Vehicles General Discussion
Topic: Sinclair C5 teardown on EEVBLOG ;)
Replies: 14
Views: 1837

Re: Sinclair C5 teardown on EEVBLOG ;)

I tried pedalling one once, a long time ago. No gears, short, flexy crank and a LOT of hard work. The motor could apparently get you up to 15 mph if there isn't a hill in the way. :roll: But before you laugh too hard, some folk modify them for drag racing and get up to 150 mph and 0-60 in five secon...
by JennyB
Jul 18 2014 3:48am
Forum: E-Bike Non-hub Motor Drives
Topic: New Bafang Crank-Drives
Replies: 4435
Views: 782040

Re: New Bafang Crank-drives

Hi all, just wanted to post a thank you to all who offered up advice on getting my stuck axle issue resolved. I ended up filing the inside of the BB shell until the unit could slide through. Very pleased to be able to continue to progress. Now on to find some M33 hex nuts to use in place of the sto...
by JennyB
Jul 09 2014 8:22am
Forum: E-Vehicles General Discussion
Topic: Long Distance Ebike Design
Replies: 69
Views: 12395

Re: Long Distance Ebike Design

I don't think of a 100 mile ebike as anything unattainable or mystical: JennyB has documented 100 mile rides on her road bike in which she's using the electric propulsion as only a hill assist. That's a valid "use mode" and something I think is feasible if the bike is light enough (and yo...
by JennyB
Jun 28 2014 4:47pm
Forum: E-Bike General Discussion
Topic: 1200 km, 14 km of climbing in 90 hours - AM I MAD?
Replies: 33
Views: 3951

1200 km, 14 km of climbing in 90 hours? I WAS MAD!

Well, the Roche-Elliott-Kelly 400k ride at the end of May did not go well. I'd reckoned I might be able to complete it in a bit over 24 hours, and, if so, it might be possible to contemplate the 1200k ride without assistance. I knew I was slow on the hills, but I managed the climb up Glenmalure to t...
by JennyB
Jun 26 2014 1:07pm
Forum: E-Bike Non-hub Motor Drives
Topic: Calculating Mid-Drive drive train ratio + nuvinci. How?
Replies: 41
Views: 3771

Re: Calculating Mid-Drive drive train ratio + nuvinci. How?

Gear inches may be an old-fashioned way to describe gearing, but it works neatly with ebikes. The important number is 336: if a hub motor has enough power to run at 336 rpm the bike will go one mph faster for each inch increase in driven wheel diameter. A 20" wheel will get you 20 mph, and a 26...
by JennyB
Jun 16 2014 4:16pm
Forum: E-Bike General Discussion
Topic: Riding long and lean
Replies: 4
Views: 666

Re: Riding long and lean

The battery is from Schwibsi of this forum, 20ah of Sanyo V3 - half the size and weight and twice the capacity of the first lithium battery I had. I'm charging with a couple of 6 amp Cellman chargers in parallel. Together they fit neatly in the bottom of my Carradice saddlebag. In total, this setup ...
by JennyB
Jun 15 2014 3:34pm
Forum: E-Bike General Discussion
Topic: Riding long and lean
Replies: 4
Views: 666

Riding long and lean

Since I started logging my rides at the start of the year I've ridden over 3,600km on two bikes, both sometimes assisted, sometimes bare: Trek FX7.1 (basic hybrid) Bare 596 km. Ave 18.6 km/h Assisted 497 km. Ave 21.9 km/h Boardman Hybrid Comp (entry level performance flat bar road bike) Bare 2383 km...
by JennyB
May 28 2014 2:48pm
Forum: E-Bike General Discussion
Topic: 1200 km, 14 km of climbing in 90 hours - AM I MAD?
Replies: 33
Views: 3951

Re: 1200 km, 14 km of climbing in 90 hours - AM I MAD?

Only just over three weeks to go now, and it looks like I won't be riding the Mile Failte assisted unless I can find a suitable motor PDQ. :( Thing is, I want to ride the new bike because that's what I'm putting in the distance on, and I'd rather have a front hub: 1. So I don't do an accidental back...
by JennyB
May 16 2014 1:49pm
Forum: General Discussion
Topic: New job with a Tough commute.
Replies: 27
Views: 1801

Re: Tough commute.

Absolutely, I kept getting told by everybody to apply for it, but I had near zero chance of getting a disability pension. On a good day I'm normal, so very hard to prove disability. Three "normal" days in a row, and I'm back in bed for a week sick as hell. And anyway, I'd rather adapt, im...
by JennyB
May 12 2014 2:14pm
Forum: E-Bike General Discussion
Topic: 1200 km, 14 km of climbing in 90 hours - AM I MAD?
Replies: 33
Views: 3951

Re: 1200 km, 14 km of climbing in 90 hours - AM I MAD?

1.2kg of batteries (Panasonic NCR18650pf, 2900mah/cell) is giving me exactly 18km of no-pedal range on flat terrain IRL. That's less than 18wh/km. This is on Q100H and 4,2V/cell. Every additional 1 kg of batteries gives 15 Km of extra distance. Or: every 100km distance = 6.7kg of batteries. That se...
by JennyB
May 10 2014 4:16am
Forum: E-Bike General Discussion
Topic: 1200 km, 14 km of climbing in 90 hours - AM I MAD?
Replies: 33
Views: 3951

Re: 1200 km, 14 km of climbing in 90 hours - AM I MAD?

Time for an update. I am definitely mad! :lol: I've lost a lot of weight - back under 90 kg for the first time in at least 5 years - got a lot fitter and a bit faster. Bought a decent bike at the end of March and have put well over 1000km on it, including a 200k and a 300k Audax. I'm still very slow...
by JennyB
Mar 15 2014 3:17pm
Forum: E-Bike Technical
Topic: How do I destructively remove a freewheel Finished
Replies: 29
Views: 3023

Re: How do I destructively remove a freewheel

TylerDurden wrote:Hiya Doc,

I'd clamp the freewheel in a vise with the axle pointing up (freewheel pointing down). I'd ensure the vise swivel is tight, crank the vise jaws very tight, then turn the wheel to break it free.
When you get a remover tool that fits, clamp that It the vice and proceed as above.
by JennyB
Mar 08 2014 9:47am
Forum: E-Bike Technical
Topic: Programmable Controllers
Replies: 3
Views: 512

Re: Programmable Controllers

Reserved for summary